Gluten Free Cookies and Cream Donuts

Name: Gluten Free Cookies and Cream Donuts
Prep time: 20 min
Cook time: 9 min
Total time: 29 min
Ingredients: 1 cup gluten free all-purpose flour*; 1/4 teaspoon xanthan gum; 1/2 cup granulated sugar; 1/4 cup Dutch Processed Cocoa Powder; 1/2 teaspoon baking powder; 1/2 teaspoon baking soda; 1/4 teaspoon fine sea salt; 1/2 cup milk (room temperature (regular or unsweetened coconut milk)); 1/4 cup avocado oil; 1 large egg (room temperature); 1 teaspoon vanilla extract; 1/2 teaspoon chocolate extract (optional); 8 chocolate sandwich cookies (crushed and divided); 2 Tablespoons salted butter (softened); 1 oz cream cheese (room temperature); 3/4 cup powdered sugar; 1/2 teaspoon vanilla extract; 1 Tablespoon heavy cream (or more for a thinner consistency)